Accent ceilings are the new accent walls. I've done this and I love it. Gray walls, green ceiling.

Love a blue ceiling! Accent ceilings are the new accent walls. | 31 Easy DIY Upgrades That Will Make Your Home Look More Expensive

Accent ceilings are the new accent walls. | Consider this for the master bath & guest bath. Consider buying crown molding, painting, and nailing it up in to make the rooms look better. Consider re-staining the front door & handing rods (top & bottom) on the open window part.